Independent Diamond Verification & Authentication
NSD is an independent, neutral, buyer-side diamond verification and authentication service dedicated to protecting buyers, jewellers, traders and investors before they complete a diamond transaction.
We independently verify both the physical diamond and its laboratory certificate to ensure they match accurately before payment. Our protocol helps reduce fraud risk, uncover hidden quality concerns, and provide buyers with the confidence to make informed purchasing decisions.
Unlike traditional market participants, NSD never buys, sells, carries or stores diamonds. We work only on the buyer's instruction, delivering transparent, evidence-based verification and secure transaction support.